27696343 has 4 divisors (see below), whose sum is σ = 28340488. Its totient is φ = 27052200.

The previous prime is 27696329. The next prime is 27696367. The reversal of 27696343 is 34369672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27696343 - 2²¹ = 25599191 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27696296 and 27696305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27696323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322008 + ... + 322093.

It is an arithmetic number, because the mean of its divisors is an integer number (7085122).

Almost surely, 2^27696343 is an apocalyptic number.

27696343 is a deficient number, since it is larger than the sum of its proper divisors (644145).

27696343 is an equidigital number, since it uses as much as digits as its factorization.

27696343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644144.

The product of its digits is 163296, while the sum is 40.

The square root of 27696343 is about 5262.7315150975. The cubic root of 27696343 is about 302.5571888324.

The spelling of 27696343 in words is "twenty-seven million, six hundred ninety-six thousand, three hundred forty-three".